default custom domain email address as sender
Make it possible to indicate custom domain email address as 'main' address and have it as default when composing new emails from the web interface.
You can achieve this at this time. Please see this article: https://protonmail.com/support/knowledge-base/default-sending-address/
-
Ron Lillycrop commented
Turns out you can already do this. To set another address as default you grab the one lower on the list and drag it to a top. There's a ==teeny== note about this function just above the list.
Perhaps this could be clarified a little bit better in the UI? Although the re-order function is cool and works well I don't really see the point of re-ordering them. Setting default seems like the core function which is a bit obfuscated with the way it currently works.